National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Overcast

47°F

8°C

Humidity 86%
Wind Speed S 13 G 23 mph
Barometer 30.27 in (1025.2 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 13 Apr 3:56 am EDT
Extended Forecast for

South Dennis MA

  • Overnight

    Overnight: A slight chance of showers. Cloudy, with a low around 43. South wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    Low: 43 °F

    Slight Chance
    Showers

  • Monday

    Monday: A chance of showers, mainly before 10am. Areas of fog after 5pm. Otherwise, cloudy, with a high near 60. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.

    High: 60 °F

    Chance
    Showers and
    Areas Fog

  • Monday Night

    Monday Night: Areas of fog before 9pm, then areas of fog after midnight. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 49. Southwest wind 11 to 18 mph, with gusts as high as 29 mph.

    Low: 49 °F

    Areas Fog

  • Tuesday

    Tuesday: Mostly sunny, with a high near 64. West wind 7 to 10 mph becoming south in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly before midnight. Mostly cloudy, with a low around 48. Southwest wind 13 to 17 mph. Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63. Northwest wind 7 to 9 mph becoming south in the afternoon. Winds could gust as high as 21 mph.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers between 9pm and 2am. Mostly cloudy, with a low around 48. South wind 5 to 9 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly cloudy, with a high near 58. Southwest wind 5 to 8 mph becoming southeast in the morning.

    High: 58 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 48. Southwest wind around 6 mph.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of showers. Cloudy, with a low around 43. South wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Monday
A chance of showers, mainly before 10am. Areas of fog after 5pm. Otherwise, cloudy, with a high near 60. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.
Monday Night
Areas of fog before 9pm, then areas of fog after midnight. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 49. Southwest wind 11 to 18 mph, with gusts as high as 29 mph.
Tuesday
Mostly sunny, with a high near 64. West wind 7 to 10 mph becoming south in the afternoon.
Tuesday Night
A chance of showers, mainly before midnight. Mostly cloudy, with a low around 48. Southwest wind 13 to 17 mph. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 63. Northwest wind 7 to 9 mph becoming south in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
A chance of showers between 9pm and 2am. Mostly cloudy, with a low around 48. South wind 5 to 9 mph becoming calm in the evening. Chance of precipitation is 30%.
Thursday
Mostly cloudy, with a high near 58. Southwest wind 5 to 8 mph becoming southeast in the morning.
Thursday Night
Mostly cloudy, with a low around 48. Southwest wind around 6 mph.
Friday
Partly sunny, with a high near 61. Southwest wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around 45. Southwest wind around 5 mph becoming light and variable in the evening.
Saturday
Partly sunny, with a high near 54. Northeast wind 5 to 7 mph.
Saturday Night
Mostly cloudy, with a low around 45. South wind around 5 mph.
Sunday
A chance of showers. Mostly cloudy, with a high near 59. South wind 7 to 9 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
3:11 am EDT Apr 13, 2026
Forecast Valid:
4am EDT Apr 13, 2026-6pm EDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation